74.9% is the change from 251 to 439
Calculation steps:
[( 439 - 251 ) ÷ 251] x 100 = 74.9%
Formula
Percentage change = [(439 - 251) / 251] x 100
Subtract the new number by the original number
439 - 251 = 188
188 ÷ 251 = 0.749003984063745
0.749003984063745 x 100 = 74.9%